E-portfolio 5

The goal of this work is to explore a low-pressure Carbon Filter Process technology, which is, an inline flue gas Filter that captures CO2 by a carbonaceous sorbent, and, more specifically, to evaluate its capacity and CO2/N2 selectivity, to scale them up to a Carbon Filter Process.


Firstly, this technology is beneficial to the environment. CO2 is the main cause of global warming. Carbon Filter Process is an efficient way to reduce CO2 emission without compromising industries’ developments. With this technology, more countries could participate in this beneficial activity to work together and protect the environment.

The second reason is that, the Carbon Filter Process does not cost a lot. This Carbon Filter Process requires neither expensive materials nor flue-gas compression; and it is easy to heat integrate with an existing or grassroots power plant without affecting the cost of the produced electricity too much.
Thirdly, by adopting this technology, the company can show its concerns towards the climate changes to the public and can gain a good reputation from this action. Corporate social responsibility is a hot and tough issue facing by big corporations nowadays and actually it is one of determinant factors of companies’ competitive strength. In conclusion, people should support the Carbon Filter Process. Not only because it is friendly to the environment and economy effective, but also our responsibility to the planet.

E-portfoliao

Carbon dioxide is a main problem since the industrial revolutions starts. Our round table discussion is about this topic.This work is motivated by the need for inexpensive carboncapture technology for combustion-based power plants. Such power plants produce electricity by converting coal or natural gas to carbon dioxide (CO2), which is normally vented as an 11%-12% component of flue gas that contains a balance of nitrogen and other minor components. Before I list down the advantages of utilizing this technology, let us look at some interesting topics about CO2 (carbon dioxide). Most of us may think C02 as a useless gas except in photosynthesis process, but actually, pure C02 plays a significant role in industries, especially in enhancing oil and methane recovery. So if we can get carbon-rich gas from the existing resources, just get it.Firstly, this technology is beneficial to the environment. CO2 is the main cause of global warming. Although there has been proposed several policies, such as the Kyoto Protocol, to establish a cooperation among countries to reduce the CO2 emission. However, Kyoto Protocol has not been fully accepted by all countries; since it may affect their industries’ developments. Carbon Filter Process is an efficient way to reduce CO2 emission without compromising industries’ developments. With this technology, more countries could participate in this beneficial activity to work together and protect the environment All these absorption, adsorption, and membrane approaches have been well-documented (see, for example, the reported work of rzog and Drake,1 Mimura et al.,2 White et al.,3 and Aaron and Tsouris4). The main directions of research aimed at future innovations are focused on developing novel CO2 separation materials, such as ionic liquids,5 ionic polymers,6-8 and nanosilica nd nanotube composites,9-11 just to mention recent examples from our laboratory; however, this is an active field of research in many other laboratories. One of the more popular research directions has been PSA using zeolite X13 and activated carbon, but only for sorption at elevated pressures (at least 2 bar). Zeolite 13X has higher capacity, but activated carbon is less expensive than zeolite and insensitive to moisture.20-26 Its surface properties can vary considerably, but its approximate pure-CO2 sorption capacity can be as high as 10 wt % and its carbon dioxide/nitrogen (CO2/ N2) selectivity is on the order of 10, at 1 bar and 25 °C.12-15 ther types of carbonaceous sorbents, such as charcoal and coal, have been studied in a different CO2 context;16-19 however, they have not been explored or proposed for carbon capture from flue gas yet. For example, in the context of displacing coal-bedmethane with CO2, it has been shown that virgin coal has a higher capacity for CO2 than it does for methane,19 again, only at elevated pressures. However, there are no references to lowpressure lue-gas CO2 sorption coupled with thermal regeneration.Maciej Radosz, Xudong Hu, Kaspars Krutkramelis, and Youqing Shen(29 April 2008) Flue-Gas Carbon Capture on Carbonaceous Sorbents: Toward aLow-Cost Multifunctional Carbon Filter for “Green” Energy Producers Retrieved 2rd Mar 2009Website http://pubs.acs.org on March 7, 2009